Apparatus for feeding material.



2 SHEETS-SHEET 1.

PATE-MBD APR. 5, '1904.

W. M. WHEILDUM APPARATUS FOR FEEDIN G MATERIAL. I APPLIoA'rIoN FILED.TUNE ze, 1900.

No MODEL.

s A WM ma@ f WM Attys.

Witnesses PA'I'BNTED APR. 5, 1904.

In Ventor,

Attys.

No, 756,307A

W. M. WHBILDON. APPARATUS FOR PEEDING MATERIAL.

APPLICATION FILED JUNE 26, 1900.

No xoDBL.

W1tnesses UNITED STATES Patented April 5, 1904.

PATENT OFFICE- I`O` AERO-PULVERIZER COMPANY, JERSEY CITY, NEW JERSEY, AI

CORPORATION OF NEW JERSEY.

APPARATUS Fon FEEDING. MATERIAL.v

SPECIFICATION forming part of Letters Patent No. 756,307, dated April 5,1904,.l

Application iileii June 2B, 1900.

pose-as, for instance, the feeding of coal or other material to apulverizer. In my Patents Nos. 635,112 and 635,113, dated October 17,1899, I show apparatus forthis purpose, the first of said patentsdescribing astationary neck through which the material is fed, arotatable table adjustable toward and away from the neck to regulatethe. feed, and a shear held from rotation, 'but adjustable verticallywiththe table for scraping off from the table the material depositedthereon through the neck, and the second of said patents describing adevice for the purpose comprising a stationary neck having aregulating-sleeve mounted onv its interior and adjustable toward y andaway from a stationary table to regulate the feed, the material beingswept off of said table by one or more rotating shear-knives.

The object of my present invention is to provide a feeding apparatuswherein are utilized the best features of the said prior dep vices,While at the same time the construction is simpler and the operationmore. effective i than with the construction of either patent.

To this end my present invention comprises in a feed device forpulverulent material a horizontal rotatable table on which the materialis deposited, a xed shear for scraping the material from said table,a'neck through which the material is delivered to the table, vandaregulating-sleeve mounted on the enterior of said neck for effecting thedesired regulation, all as will be-more fully hereinafter described andclaimed. p

' When my improved feeding device is used in connection with apulverizer wherein a regulable air-supply is necessary, the inventionSerial No. 21,635. (No model.)

comprises a further improvement in the means for securing such anair-supply in connection with the feed of the material.

In order that my invention maybe better izer; Fig. 2, a section on theline 2 2of Fig.

1; Fig. 3, a section on the line 3 3 of Fig. 1, and Fig. 4 a plan. Y y

In all of the above views corresponding parts are represented by thesame numerals of reference.

1 represents the main part of a casing, having an exit-opening 2 at itslower end, as shown, said casing being generally circular incross-section at its upper part and being formed with a hollowprojection 3. The part 1 has a hub 4 cast with it and also a hollowcylinder 5, formed with a flat flange 6 at its bottom, suitablystrengthened by a web 7 7 s 8 represents the upper part of the-casing,which is bolted to the lower part, as shown,- and is formed withanopening 9 directly above the projection 3 and through which the handy ofthe operator may be introduced to clean out the casing in the event ofclogging.

l() is thetable, rotating in a horizontalplane at the top of4 the part 1of the casing and carried on ashaft 11, which passes through thev hub 4and downwardly past the flange 6. Bolted to the bottom of the ange 6 isa wormcasing 12, having a bearing 13 cast therewith, which supports thelower end of the shaft 11.

By casting the worm-casing 12 in one piece,

as shown, it is made oil-tight and dustp'roof.

Mounted in the Worm-casing on the shaft 11 i is a worm-gear 14, drivenfrom a worm 15 on A a driving-shaft 16. Castwith the worm-casing 12varethe legs or/supports 17 for sustaining the feeding device. At the top ofthe casing I employ a neck 18, preferably removably secured in positionand to which the` vmaterial is constantly supplied, so as to be lfedtherefrom to the table 10. Mountednpon the outside of said ne'clris aregulating-sleeve 19, which, as shownparticularly in Fig. 3, is

formed with a series' of shallow ribs 20, which bear on" the neck 18,thereby reducing fric; tion and" lesseningvgthe .'lialoilitypfl thesleeve becoming rustedv'rrwedged upon 'the neck.

. adjustment of theregulatingsleeve is secured without the necessity ofemploying slotted connections. The ishaft 22fcarries a regulating-lever25, having av handle at "its end and formed with an opening thereinv inwhich is mounted a rack-rod 26, with which a springl pressed latch 27 isadapted' to engage, said latch being actuated by a finger piece. 28,.whereby the latch maybe withdrawn from the teeth of the lrack when litis desired to effeet an adjustment of the regulating-sleeve. The table1Q preferably carries a cone 29, as I describe in my said patents, saidcone being hollow and-pinned in place, as shown in Fig; 1 and preferablycarrying agitating-arms 30 for' agitating the material in the neck 18and preventing its accumulation therein. VjIn'orrder to remove thematerial from the table 10, I employ astat'ionaryshear-knie .31, boltedor screwed in place, and which extends through a slot 32 in theregulating-sleeve 19, as shown, the edge of said shear-knife reachingsubstantially to the periphery of the cone 29, so as to removepractically the entire bulli pf the material deposited on the tablethrough the neck.

-When my improved feeding device isused in connection .with a pulverizerWhere a regulable air-supply is necessary, I' bolt it -at the side ofthe casing 33, having an opening 34,

through which the material is fed, and provided with an open topin.which is mounted- -a damper 35'for regulating the amount ,of air..passing therethrough..

The operation of my improved feeding device will` be as follows: Poweris applied to the shaft 16 to drive the shaft 11 through the worm 15 andworm-gear 1 4, thereby rotating the table 10 at the desired speed. rIhematerial to be fed is' constantly vvsupplied to the neck 18 and isdeposited upon' the table 10 in an amount depending upon the distancebetween the lower end of 'the regulating-sleeve' A 19 andsaid table,which amount may be regu-y lated by shifting the position of. saidsleeve, as will be obvious. As the table rotates the material will be'swept olf of the same by the 'shear-knife 31 and will be deposited inthe vthe casing 33 and' out through the opening ,311. The additional airnecessary when thev device Ais used in connection With-a pulverizer willbe supplied through the open upper end of the casing 33. n

' Having now describedmy invention, what I claim as new, and desire tosecure by Letters A Patent, is as'follows:

1. An improved feeding device:7 comprising in combination a rotatabletable mounted in a horizontal plane, a neck through which the ma casing,passing through the opening 2 into terial is fed, a regulating-sleevemoving lonin combination a rotatabletable4 mounted in a l horizontalplane, a neck through which the materia'l is fed, a. regulating-sleev,evmoving lonmounted exterior-ly thereof, a stationary shear extendingvertically between the table and neck and inwardly within the spaceinclosed by the sleeve and arranged out of line with the diameter of thetable, and means for manually shifting the position of said sleeve,substantially as set forthr 3. In an improved `feeding device, thecombination of a rotatable tablemounted in ahorizontal plane,'astationary shear with respect to which the table rotates, a nck'throughwhichfthe material is fed, a regulating-sleeve surrounding the neck' andmovable longitudinally withl respect to the same, the sleeve beribs forengagement with said neck, and means for adjusting sleeve vertically,substantia'lly as set forth. y

Thisspecification ,sig 14th day of June, 1900.

' "mman-MAXWELL WHEILDON.

Witnesses:

' FRANKLDYER,

' JNO. R. TAxLoR.

gitudinlly with respect to said 'neck and' 4ing provided withshallowparallel vertical' IOO ned and witnessed this)

